//--------- ÷ºÎÆÄÀÏ ±ÝÁö ½ÃÀÛ --------------------//
	function preView(frm,idx) {
		var exten = eval("document.frm.filename"+idx)
		var extention = exten.value.split(".");
	    var ext = extention[1].toLowerCase();
		if (
		ext != "exe"  &&  ext != "com"  &&  ext != "bat"   &&  ext != "asp"  &&  ext != "jsp"  &&  ext != "php"  &&  ext != "htm"   &&  ext != "html"  && 
		ext != "msi"  &&  ext != "avi"  &&  ext != "mp3"   &&  ext != "asf"  &&  ext != "wmv"  &&  ext != "mpg"  &&  ext != "mpeg"  &&  ext != "vbe"   && 
		ext != "vbs"  &&  ext != "cer"  &&  ext != "mdl"   &&  ext != "htt"  &&  ext != "htc"  &&  ext != "wml"  &&  ext != "dtd"   &&  ext != "dtd"   && 
		ext != "uls"  &&  ext != "wsc"  &&  ext != "vcf"   &&  ext != "sgm"  &&  ext != "sgml" &&  ext != "vrml" &&  ext != "wrl"   &&  ext != "cur"   &&   
		ext != "ani"  &&  ext != "js"   &&  ext != "Class" &&  ext != "sfw"  &&  ext != "cfm"  &&  ext != "cfml" &&  ext != "txt"   &&  ext != "Asc"   &&  
		ext != "doc"  &&  ext != "ai"   &&  ext != "eps"   &&  ext != "ps"   &&  ext != "vsd"  &&  ext != "mpp"  &&  ext != "wk4"   &&  ext != "rtf"   &&  
		ext != "wmf"  &&  ext != "mcw"  &&  ext != "wps"   &&  ext != "wpg"  &&  ext != "xls"  &&  ext != "csv"  &&  ext != "xlw"   &&  ext != "mpe"   &&  
		ext != "mp2"  &&  ext != "asd"  &&  ext != "asx"   &&  ext != "divx" &&  ext != "wma"  &&  ext != "mp3"  &&  ext != "m3u"   &&  ext != "aif"   &&    
		ext != "aiff" &&  ext != "aifc" &&  ext != "au"    &&  ext != "snd"  &&  ext != "ra"   &&  ext != "ram"  &&  ext != "wav"   &&  ext != "Mod"   &&   
		ext != "Mid"  &&  ext != "midi" &&  ext != "cdf"   &&  ext != "pac"  &&  ext != "hqx"  &&  ext != "msi"  &&  ext != "aspx"  &&  ext != "ashx"  &&  
		ext != "asmx" &&  ext != "p7b"  &&  ext != "crl"   &&  ext != "asa"  &&  ext != "pl"   &&  ext != "cgi"  &&  ext != "shtml" &&  ext != "inc"   && 
		ext != "php3"
		){return;}
	    else {alert("È®ÀåÀÚ°¡ "+ext+"ÀÎ ÆÄÀÏÀº ¾÷·Îµå ÇϽǼö ¾ø½À´Ï´Ù.");return false;}
	}
	//--------- ÷ºÎÆÄÀÏ ±ÝÁö ³¡ ----------------------//
	
	function cnjOpen(url, n, w, h, s) {
		var winl = (screen.width - w) / 2;
		var wint = (screen.height - h) / 2;
		winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+s+',resizable'
		win = window.open(url, n, winprops)
		if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
	}
	  
	function CheckStr(strOriginal, strFind, strChange){
		var position, strOri_Length;

		position = strOriginal.indexOf(strFind);	

		while (position != -1){
			strOriginal = strOriginal.replace(strFind, strChange);
			position    = strOriginal.indexOf(strFind);
		}

		//strOri_Length = strOriginal.length;

		return strOriginal;
	}

	function CheckStrLen(strOriginal, strFind, strChange){
		var position, strOri_Length;
		
		position = strOriginal.indexOf(strFind);	
		
		while (position != -1){
			strOriginal = strOriginal.replace(strFind, strChange);
			position    = strOriginal.indexOf(strFind);
		}
		
		strOri_Length = strOriginal.length;
		
		return strOri_Length;
	}

	//Áֹεî·Ïüũ
	function CheckValues(pvalue1, pvalue2) {

		var digit=0
		for (var i=0;i<pvalue1.length;i++){
		 var str_dig=pvalue1.substring(i,i+1);
		 if (str_dig<'0' || str_dig>'9'){ digit=digit+1 }
		}

		if ((pvalue1 == '') || ( digit != 0 )) { return false; }

		var digit1=0
		for (var i=0;i<pvalue2.length;i++){
			var str_dig1=pvalue2.substring(i,i+1);
			if (str_dig1<'0' || str_dig1>'9'){ digit1=digit1+1 }
		}

		if ((pvalue2 == '') || ( digit1 != 0 )){ return false; }

		if (pvalue1.substring(2,3) > 1){ return false; }

		if (pvalue1.substring(4,5) > 3){ return false; } 

		if (pvalue2.substring(0,1) > 4 || pvalue2.substring(0,1) == 0){ return false; }

		var a1=pvalue1.substring(0,1)
		var a2=pvalue1.substring(1,2)
		var a3=pvalue1.substring(2,3)
		var a4=pvalue1.substring(3,4)
		var a5=pvalue1.substring(4,5)
		var a6=pvalue1.substring(5,6)
					 
		var check_digit=a1*2+a2*3+a3*4+a4*5+a5*6+a6*7

		var b1=pvalue2.substring(0,1)
		var b2=pvalue2.substring(1,2)
		var b3=pvalue2.substring(2,3)
		var b4=pvalue2.substring(3,4)
		var b5=pvalue2.substring(4,5)
		var b6=pvalue2.substring(5,6)
		var b7=pvalue2.substring(6,7)

		var check_digit=check_digit+b1*8+b2*9+b3*2+b4*3+b5*4+b6*5 

		check_digit = check_digit%11
		check_digit = 11 - check_digit
		check_digit = check_digit%10

		if (check_digit != b7){ return false; }

		return true;
	}


	function toDate(pobj) {
		var vdate = pobj.value
		var vlen = vdate.length
		var vyy=''
		var vmm=''
		var vdd=''
	
		vdate = CheckStr(vdate, '-','')
	
		switch (vlen) {	
			case 5:
			case 6:
				vyy = vdate.substr(0, 4)
				vmm = vdate.substr(4, 2)
				vdd = ''
				pobj.value= vyy+'-'+vmm
				break;
			
			case 8:
			case 9:
				vyy = vdate.substr(0, 4)
				vmm = vdate.substr(4, 2)
				vdd = vdate.substr(6, 2)
				pobj.value= vyy+'-'+vmm+'-'+vdd
				
				break;
		}
	
	}
	
	
	function toDateS(pstr) {
		var vdate = pstr
		var vlen = vdate.length
		var vyy=''
		var vmm=''
		var vdd=''
	
		vdate = CheckStr(vdate, '-','')
	
		vyy = vdate.substr(0, 4)
		vmm = vdate.substr(4, 2)
		vdd = vdate.substr(6, 2)
		return  vyy+'-'+vmm+'-'+vdd
	
	}
	
	//°ø¹é üũ
		function CheckValue(msg,frm,formname)
	{
		
		
		
		form=eval("document.forms['"+frm+"']." + formname);

		form_value=eval("document.forms['"+frm+"']."+formname+".value");
		
		form_value=CutTrim(form); //°ø¹é °Ë»ç
		if(!form_value)
		{
			alert(msg);
		       	form.focus();
			return false;
		}else{
			
			return true;
		}
		
	}
	
	function CheckNumValue(msg,frm,formname)
	{
		
		form=eval("document.forms['"+frm+"']." + formname);

		form_value=eval("document.forms['"+frm+"']."+formname+".value");
		
	
		form_value=CutTrim(form); //°ø¹é °Ë»ç
		if(!form_value)
		{
			alert(msg);
		       	form.focus();
			return false;
		}else{
			if(!IsNumber(frm,formname))
			{
				alert('¼ýÀÚ¸¸ ÀÔ·ÂÇϼ¼¿ä');
				form.select();
				form.focus();
				return false;
			}else{
				return true;
			}
		}
		
	}
	
	function IsNumber(frm,formname) {
		
		//var form = eval("document.myform." + formname);
		form=eval("document.forms['"+frm+"']." + formname);
		
				for(var i = 0; i < form.value.length; i++) {
					var chr = form.value.substr(i,1);
					if(chr < '0' || chr > '9') {
						return false;
					}
				}
				return true;
	}
	 function CutTrim(fname) 
    	 {
        	var pattern = /(^\s*)|(\s*$)/g; 
        	fname.value = fname.value.replace(pattern, "");
        	return fname.value;
    	 }
    	 function LoginAlert()
    	 {
    	 	alert("·Î±×ÀÎÀ» ÇÏ¼Å¾ß ÀÌ¿ë°¡´ÉÇÕ´Ï´Ù");
    	 	document.forms["leftlogin"].userid.focus();
    	 }